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/* **********************************************
* NRE internals
* **********************************************
*/
/*
* Inline versions of Tcl_NRAddCallback and friends
*/
#define TOP_CB(iPtr) (((Interp *)(iPtr))->execEnvPtr->callbackPtr)
#define TclNRAddCallback(interp,postProcPtr,data0,data1,data2,data3) \
do { \
NRE_callback *cbPtr; \
ALLOC_CB(interp, cbPtr); \
INIT_CB(cbPtr, postProcPtr,data0,data1,data2,data3); \
} while (0)
#define INIT_CB(cbPtr, postProcPtr,data0,data1,data2,data3) \
do { \
cbPtr->procPtr = (postProcPtr); \
cbPtr->data[0] = (ClientData)(data0); \
cbPtr->data[1] = (ClientData)(data1); \
cbPtr->data[2] = (ClientData)(data2); \
cbPtr->data[3] = (ClientData)(data3); \
} while (0)
typedef struct NRE_callback {
Tcl_NRPostProc *procPtr;
ClientData data[4];
struct NRE_callback *nextPtr;
} NRE_callback;
#define POP_CB(interp, cbPtr) \
do { \
cbPtr = TOP_CB(interp); \
TOP_CB(interp) = cbPtr->nextPtr; \
} while (0)
#define ALLOC_CB(interp, cbPtr) \
do { \
cbPtr = ckalloc(sizeof(NRE_callback)); \
cbPtr->nextPtr = TOP_CB(interp); \
TOP_CB(interp) = cbPtr; \
} while (0)
#define FREE_CB(interp, ptr) \
ckfree((char *) (ptr))
#define NEXT_CB(ptr) (ptr)->nextPtr
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